Year | Value | 2021 | 1,499,034 | 2020 | 903,927 | 2019 | 4,656,017 | 2018 | 7,819,740.5599824 | 2017 | 7,242,611 | 2016 | 5,710,834 | 2015 | 4,134,980 | 2014 | 3,035,882.7791066 | 2013 | 2,602,714 | 2012 | 2,400,160 | 2011 | 2,150,527 | 2010 | 1,851,416.8417551 | 2009 | 1,364,651 | 2008 | 1,423,422 | 2007 | 1,720,496 | 2006 | 1,536,157 | 2005 | 1,528,929 | 2004 | 1,332,811 | 2003 | 1,133,775 | 2002 | 1,198,920 | 2001 | 1,357,946 | 2000 | 1,431,818 | 1999 | 1,350,200 | 1998 | 1,592,700 | 1997 | 1,334,400 | 1996 | 1,239,100 | 1995 | 1,097,000 | 1994 | 1,031,200 | 1993 | 801,000 | 1992 | 767,100 | 1991 | 772,600 | 1990 | 759,500 | 1989 | 735,900 | 1988 | 844,700 | 1987 | 910,100 | 1986 | 808,400 | 1985 | 778,000 | 1984 | 710,100 | 1983 | 601,400 | 1982 | 574,300 | 1981 | 522,100 | 1980 | 541,500 | 1979 | 694,000 | 1978 | 688,000 | 1977 | 645,000 | 1976 | 601,500 | 1975 | 590,200 | 1974 | 611,200 | 1973 | 592,800 | 1972 | 545,800 | 1971 | 494,100 | 1970 | 457,900 |
|